Just call him a-john. An upcoming book reports that not only did Alex Rodriguez enjoy the services of prostitutes — he frequently turned the double play by hiring them in pairs.

The tattered reputation of the Yankee slugger will get shredded some more in “House of Outrageous Fortune: Fifteen Central Park West, The World’s Most Powerful Address,” a book by “740 Park” author Michael Gross due in time for spring training.

A building worker told Gross, “He got hookers all the time. Usually two at a time, two times a week. One time he had two go up, they came down and left, and 10 minutes later, Cameron Diaz walks in.”

“Fifteen [Central Park West] became A-Rod’s home plate,” Gross writes, where the $275 million man scored with Madonna and Kate Hudson, as well as Diaz. “But apparently they weren’t enough for A-Rod.”

Though a broker called Rodriguez “the best tenant” in the book, the 15CPW staff didn’t agree. “He was a douche, an unfriendly narcissist,” another building worker said. “I hate the guy. He thought he was God.”

A-Rod’s spokesman, Ron Berkowitz, says, “This is a further effort to fabricate scandal around Alex. The allegations concerning prostitutes are categorically false.”